5258821 has 2 divisors, whose sum is σ = 5258822. Its totient is φ = 5258820.

The previous prime is 5258807. The next prime is 5258863. The reversal of 5258821 is 1288525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3381921 + 1876900 = 1839^2 + 1370^2 .

It is a cyclic number.

It is not a de Polignac number, because 5258821 - 2¹¹ = 5256773 is a prime.

It is a Chen prime.

5258821 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5258221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2629410 + 2629411.

It is an arithmetic number, because the mean of its divisors is an integer number (2629411).

Almost surely, 2^5258821 is an apocalyptic number.

It is an amenable number.

5258821 is a deficient number, since it is larger than the sum of its proper divisors (1).

5258821 is an equidigital number, since it uses as much as digits as its factorization.

5258821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6400, while the sum is 31.

The square root of 5258821 is about 2293.2119396166. The cubic root of 5258821 is about 173.8986175598.

The spelling of 5258821 in words is "five million, two hundred fifty-eight thousand, eight hundred twenty-one".